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| Paper: |
High-resolution Imaging of Radio Jets Launched by Active Galactic Nuclei: New Insights on Formation, Structure, and Evolution Enabled by the ngVLA |
| Monograph: |
7, Science with a Next Generation Very Large Array |
| Page: |
619 |
| Authors: |
Lister, M. L.; Kellermann, K. I.; Kharb, P. |
| Abstract: |
Jetted plasma outflows from active galactic nuclei (AGN) represent the
most energetic phenomena in the known universe, and play a
key role in regulating galaxy formation through feedback processes (Harrison et al. 2018). The Jansky VLA and VLBA have played an
indispensable role in understanding the physics of these powerful jets
and their environments, via high angular resolution full polarization
imaging and astrometric studies. By bridging the current
interferometric gap between the VLA and VLBA with intermediate
baselines, the ngVLA offers exciting new opportunities to explore the
intermediate regions downstream of the high Lorentz factor pc-scale
AGN jets imaged by VLBI, where entrainment, deceleration, collimation
and particle acceleration all take place. The ability to image
exceedingly faint radio emission on scales of 10s to 100s of
milliarcseconds will lead to new breakthroughs in resolving some of
the most pressing questions regarding the formation, structure, and
evolution of AGN jets. These are in turn crucial for a more
complete understanding of the formation of supermassive black holes
and galaxies in the early universe and their subsequent evolution. |
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